Last-thimble.



PATENTBD FEB. 26, 1907.

B. SQMORTON. LAST T 'HIMBLE.

APPLICATION FILED Mn. 15. 1900.

Wat-messes.

m; into tube es r 2 w w .sss r es .s res.-

specification of Letters la.teun.

Eaiented Feb. 26, 1907.

Application filed me 15 1906. 210. 2965319.

it known iahst i, EPumrf-r MGEION, no, in the county of i see us. r

the Wood or" eo'mmonlyrer e Withs metziiiie 'iirnhie or 121.: in whim. must he of such. strength to resist the ten lousy of the x Q may, splitting pressure on she or. [so some. htiy inversion for its obieet to provide 'thi'znois bushing of reisrivcly cheap sufiieionc s i'ness snd eonsirlultien and or and. the expsnaung f iu'e 3 A. I nation consists in the improved. Whmfl 1. mil

show pro-r U1 ti v u or w'n'rgs, fornung 2. part of t s s' yssifiesuon, ...gure 1' represents s perspeetiw View of u partisiiy-forrned. hhmk mi .u to he converted into a thimhie or bushing embod ing invention. Fig. 2.xsg3resenis e 1on5 .ii'nsl seeiion o? a. com- 'znoie or bushing: oons'lmetsd in so- With my invention. 3 rep): 11d V's of fliejhi'rn ie shown 1 4 represents sseironsi View of i saving; s douhisri outer end flange. same ietters of reference indicate the s n all figures. yin? out- :ny invention 1 take a roe- -inets1 hisnh end bend the indicated in Fig. 1-, the shutteri togeihsr and for! seem as extend.

tnguisr sheet tuhs. Theiuhe tin" EUITSGd is not sun-er. for is or bushing; because it hes not suifisient s to resist pressure tendthe ruhe snd thus into the last; tne nokeh turned flange c.

The operation. of turning the flange 1) causes the edges of the portion of the blank which forms the hinge to diverge and form notch or recess 1, which interrupts the concity of the outer portion of the l'iange, shown in Fig. When the thimbie is driven of the flange is cause as receive a portion of ihe top of thehist. 'ifhe thimh'le is thus locked to the last, so that is cannot turn kherein.

The auge 1 is formed by doubling in portion of the material, as indicated in Fig. 4, this operation using effected by longitudinal pressure exerted on the outer end of the tube suel'l manner .ss to cause a portion of the tube to buckle or bend outwardly. This pressure is eontinued until the sides of'the buckled portion are brought together. The doubled flange 6 thus formed is very stiff and rigid owing); to its circular form and. to its its double firiehness, its rigidity being such than: enei'ileri to withstand any pressure ijihhie to he exerted on it tending to expand @1- open the thimble. It is, in fast, so strong and rigid thus when the thimhle is driven into the last the said flange is able to force s Way imo the wood around the upper en oi the hole neviousiy bored in the wood, exepting stv the point'where she notch (1 occurs. The unhro'iren fibers of the wood project into :sidnobeh and prevent on y turning'and consequent loosening of the thimhlo. The in wsrrily-turnsd flange c is of I and not. only 0 st-iiion the iowvr end the tube ufgsinst expanding pressure, but uiso as a. seat for she 0nd of the spindle inserted in "the thimbi-s when the last is in use.

My improved thimble 0r bushing Way be eonstrueted es very SIY sli expense and is at the same time suited in all res )ects for the surpass :for which it; is inten ed, and, as heen rrentiened, it. may be driven into the preqirsisipboree hole or socket, in the lust Wiehies upper flange embedded in the wood, so that it cannot become loose, and

single thiek- IOC will withstand all the expanding pressuqe to stifl'mingfiange, which is intemupted by 3110 which it can be subjected when the last 15; in l notch or recess adapted to re ceiye a portion use on a jack-spindle. of the-last.

I claim i In testimony whereof I have afiixed my A thimble or bushing for lasts composed sigl'lature in presume of twc Witnesses. of a blank bent into a tube, one and of the I EPHRAIM S. MORTON. tube being turned inwardly to form a stifien- Y'Vimesses: ing-fiange and spindle-seat, the other end C. F. BROWN, being bent to form an outwardly-projecting E. BATCHELDER. 

